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| Number | Title | Issue Date |
| 7637386 | Plastic underground tank A tank has a pair of elongated, generally parallel, and hollow plastic chambers having longitudinally extending side walls and closed ends, and a transverse plastic connector tube having one end connected to and opening into one of the elongated chambers and an oppo... | 12/29/2009 |
| 7389891 | Septic system tank A septic system tank vertical wall has vertically overlapping grooved rings having specific diameters for receiving existing sealing couplers for septic system pipe. One wall of the groove has portions at different angles from the wall. The grooves are at the same d... | 06/24/2008 |
| 7390142 | Underground storage tank access/isolation riser assembly, method, and kit An underground storage tank riser assembly comprises a riser member and at least one riser alignment spacer assembly. The riser member comprises an inferior riser end and an outer riser surface. The outer riser surface at the inferior riser end comprises a plurality... | 06/24/2008 |
| 7387467 | Water collection system A water collection system. ... | 06/17/2008 |
| 7311216 | Modular container assembled from fiber reinforced thermoplastic sandwich panels An improved, load bearing, modular design container structure assembled from thermoformed FRTP sandwich panels in which is utilized the unique core-skin edge configuration of the present invention in consideration of improved load bearing performance, improved usefu... | 12/25/2007 |
| 7303357 | Catch basin having selectable port position A catch basin configured to allow selective positioning of the outlet and inlet ports on the side walls of the catch basin's receptacle body. At least one of the receptacle side walls comprise a slide opening having opposing sides. A slide member has a pair of slide... | 12/04/2007 |
| 7290676 | Secondary containment system for liquid storage tank A lining system for a fluid containment vessel having an outer section with a floor surface and a vertical surface. The inner section is attached to the outer section so that interstitial space exists between the outer section and the inner section and a continuous ... | 11/06/2007 |
| 7178686 | Rotationally molded subterranean tank with riser A subterranean tank assembly is provided which broadly includes a vessel, a cover, and a riser which is configured to permit the riser to be adjusted in axial length at the job site. The riser is configured to permit coupling of the cover to the topmost connector po... | 02/20/2007 |
| 7150474 | Permanently mounted hose fitting and method for filling tank cars The present invention relates to a permanently mounted hose fitting for filling tank cars that facilitates the insertion of the hose into the top of the tank car to disperse material, pellet-like particles for example, throughout the tank car. The secured hose fitti... | 12/19/2006 |
| 7149546 | Subterranean equipment bay A subterranean equipment bay for housing telecommunications equipment comprising a vault having a floor, sidewalls, and a top cover, and having a shallow depth. The vault further includes means for ventilating the vault and means for removing water from the vault. | 12/12/2006 |
| 7108821 | Method for making double-wall shells by centrifuging A method of fabricating a double-walled shell of fiber reinforced plastic material is by centrifuging. The outer wall of the shell is made by projecting glass fibers and resin in a liquid phase against an inside face of a cylindrical mold rotating about its horizont... | 09/19/2006 |
| 7090091 | Large volume container for holding liquid media A large-volume container for holding liquid media is composed of two shell-like end parts each having a ring-shaped flat contact surface, and at least one sleeve-like middle part composed of two ring segments and provided with two ring-shaped flat contact surfaces a... | 08/15/2006 |
| 7000800 | Storage tank assembly According to the present invention there is provided a storage tank assembly comprising: (i) a storage tank; (ii) support means comprising at least one load bearing reinforcement means extending around and attached to at least a portion of the outer circumference of... | 02/21/2006 |
| 6889865 | Method and apparatus for pressure testing storage tanks A storage tank includes a dome placed over an open end of a riser and secured to the riser by a fiberglass ring formed over a flanged end of the dome and a portion of the riser that is adjacent to the dome such that the interior of the tank may be pressurized to fac... | 05/10/2005 |
| 6874651 | Sealed and resistant tank The invention concerns a tank for a fluid product, having a bottom (4) and a resistant side wall (10) composed of juxtaposed prefabricated panels (1) each comprising a wall element (2) covered, on an internal face (22), with a cont... | 04/05/2005 |
| 6834534 | Fuel storage tank leak prevention and detection system and method A storage tank leak detection and prevention system that detects a breach or leak in the interstitial space of a double-walled fuel storage tank in a service station environment. The interstitial space is placed under a vacuum using a submersible turbine pump that i... | 12/28/2004 |
| 6772566 | Below grade utilities vault A below grade utilities connections vault is disclosed. The vault of the present invention comprises a concrete box with lockable, hinged lid. A floor platform lies at a distance above the bottom of the box such that utilities cables enter the box below the level of... | 08/10/2004 |
| 6698610 | Triple walled underground storage tank A triple-walled underground storage tank is provided with primary, secondary and tertiary walls. Between each two adjacent walls, an annular space is provided. The annular space is continuous throughout, and permits the flow of liquid therein. Monitors ma... | 03/02/2004 |
| 6666349 | Septic system tank A septic system tank vertical wall has vertically overlapping grooved rings having specific diameters for receiving existing sealing couplers for septic system pipe. One wall of the groove has portions at different angles from the wall. The grooves are at... | 12/23/2003 |
| 6626320 | Double walled underground storage tank and method for making the same An underground storage tank includes an outer wall having integrally formed ribs, the ribs being closed off by a layer of material applied directly over the space defined created by the ribs and attached to the outer wall, a layer of plastic film or other... | 09/30/2003 |
| 6551024 | System and method for detecting leaks in underground storage tank A double walled storage tank includes an outer wall, an inner wall, a plurality of ribs disposed between the inner and outer walls, and a plurality of annular spaces between the ribs. The annular space between each pair of ribs is connected to other annul... | 04/22/2003 |
| 6422413 | Tank vault A liquid container for the above-ground storage of flammable fuels is shown having an inner tank with a bottom surface, side surfaces, and a top surface placed within an outer shell having a bottom surface, side surfaces, and an open top. The bottom surfa... | 07/23/2002 |
| 6398057 | Triple walled underground storage tank A triple-walled underground storage tank is provided with primary, secondary and tertiary walls. Between each two adjacent walls, an annular space is provided. The annular space is continuous throughout, and permits the flow of liquid therein. Monitors ma... | 06/04/2002 |
| 6382237 | Wide area water collection type underground water tank A wide area water collection type underground water tank compresses: a water tank (11) constituted to be capable of reserving water therein, the water tank (11) being buried underground and having draining structure (14) capable of drawing out the water w... | 05/07/2002 |
| 6371323 | Poly-steel double wall tank An improved double wall tank has two or more threaded fittings, with a steel outer tank and a thermoplastic inner tank. The inner tank is formed within the outer tank by rotational molding. The inner tank is bonded to the outer tank in an area of the fitt... | 04/16/2002 |
| 6266928 | Fuel tank sump containment apparatus A sump containment apparatus for a fuel storage tank has a manhole skirt communicating with a sump interior, a bladder seal with a first portion secured in sealing engagement about an opening in the sump, and a second portion disposed about an inner surfa... | 07/31/2001 |
| 6227396 | Subterranean fluid containment tank A modular fluid storage tank, intended for underground storage of water, utilizing alternating circular and octagonal ribs in the main body and curved, ribbed, end caps. Interconnection of the tanks uses rigid pipe or semi-flexible hose. The coupling betw... | 05/08/2001 |
| 6206226 | Lining system A field applied lining system for the inside surface of fluid containment vessels is described. The lining system includes a lining joined to the inner walls of a fluid containment vessel, defining an interstitial space between the inner wall of the stora... | 03/27/2001 |
| 6167608 | Tank upgrading method and tank assembly The present invention relates to a method of upgrading a tank or a method which involves the assembly of an inner tank within an existing outer tank. In the method of the present invention, rolled panel sections are inserted through a hole of an existing ... | 01/02/2001 |
| 6126030 | Liner for a manhole and a method for lining a manhole A flexible manhole liner bag soaked with a curable liquid resin is inserted into a manhole; this liner bag is equipped with step connectors having female screws, which are disposed to penetrate and be supported by a fabric layer of the liner bag; the open... | 10/03/2000 |
| 6112935 | Catch basin A catch basin for below-grade installations to receive water through a grate, and which can be adapted to receive and discharge water through a plurality of inlet ports, and be able to withstand heavy bearing loads without collapse of the basin or of its ... | 09/05/2000 |
| 6024243 | Double wall storage tank having an outer jacket which is sealed around an aperture and a method for making same A double wall tank for the storage of liquids is disclosed, comprising a rigid inner tank having an aperture formed through a sidewall of the inner tank, and an outer sheath of synthetic resin material having an opening generally overlying the inner tank ... | 02/15/2000 |
| 6024242 | Removably insertable internal containment reservoir A removably insertable internal containment reservoir for a storage tank includes a container having an outside surface and an inside surface and formed with a chamber. The chamber has an open distal end and a closed proximal end. The closed proximal end ... | 02/15/2000 |
| 6006944 | Battery storage vault A vault for storing batteries underground, having glass fiber reinforced concrete body including a floor and vertical walls, and an insulated fiberglass top closure, and a method of storing batteries. Two conduits disposed in generally concentric fashion ... | 12/28/1999 |
| 5927898 | Method for installing a septic tank in soil A septic tank adapted for burial in soil includes a movable anchor that extends near the bottom of the tank to hold the tank in the soil.... | 07/27/1999 |
| 5829625 | FRP double-wall tank and producing method therefor The invention aims to provide a FRP double-wall tank and a producing method therefor which can provide improved productivity and cost efficiency, the FRP double-wall tank comprising an inside wall of reinforced plastics and an outside wall of reinforced p... | 11/03/1998 |
| 5803304 | Underground storage tank An underground storage tank having a shape approximating a traditional bread loaf. A dome-shaped top extends vertically downward in integral common lateral sides, which terminate in an integral flat bottom.... | 09/08/1998 |
| 5799817 | Storage tank systems with encapsulated flow paths A storage tank system has two closely associated discreet walls with closed communication flow paths therebetween. The system comprises (a) a tank having a main body side wall and attached end walls and (b) a composite wall which substantially follows the... | 09/01/1998 |
| 5752616 | Storage vessel A method of applying a laminate (4, 5, 6) to one side of a wall of a storage vessel (1) and which comprises: securing a first substantially impermeable layer (4) to said one side of the wall; securing an intermediate liquid pervious layer (5) to the expos... | 05/19/1998 |
| 5590803 | Composite double-wall underground tank structure and method for making same A composite double-wall underground tank comprises an internal rotatable metal mandrel tank frame structure surmounted by two individual concentric corrugated cylindrical nonmetallic pressure vessels having hemispherical ends. The metal tank frame structu... | 01/07/1997 |
